SPIN® Linear Actuator: A New Frontier for Electromagnetic Applications

In the field of electromagnetic actuation technologies, the innovation developed by the R&D team at Spin Applicazioni Magnetiche represents a significant step forward compared to traditional actuators. The SPIN® Linear Actuator introduces a new approach that overcomes the typical limitations of conventional electromagnets, offering greater efficiency, enhanced performance, and reduced energy consumption.

Technology and Operating Principle

The SPIN® Linear Actuator uses a patented technology that replaces the traditional spring found in conventional electromagnets. This not only improves overall performance, but also enables bistable behavior without the need for continuous power supply.

The device positions itself as an intermediate solution between:

• Conventional Electromagnet
• Linear Motor

It therefore guarantees:

• High force density
• Fast movement of the mobile part
• Low current consumption

In addition, the actuator is scalable and allows adjustment of stroke and force according to application requirements.

Main Advantages of the SPIN Linear Actuator Compared to Traditional Electromagnets

Energy Efficiency

• Significant reduction in energy consumption thanks to the absence of holding current (typical of “pick & hold” applications).
• Current absorption up to one-third lower than equivalent devices.

Superior Performance

• Higher force/current ratio (Newton/Ampere)
• Up to three times the force of a traditional electromagnet with the same absorbed current.
• High force density relative to overall dimensions.

Design and Application Advantages

• No spring → no loss of useful force caused by opposing elastic forces.
• Simple geometries → easier industrial assembly.
• Customizable technology based on stroke, force, and dimensions.
• Comparison with Traditional Technologies

Conventional Electromagnet

Typically used for:

• Very short strokes
• Low specific force
• Applications requiring a spring
• Presence of holding current
• Low-cost solutions

SPIN® Linear Actuator:

• Short to medium strokes
• High specific force
• No spring
• No holding current

Linear Motor

Typically used for:

• Long strokes
• Precise position control
• Applications requiring advanced electronics

The SPIN actuator therefore represents the best compromise between performance, simplicity, and cost.

Available Architectures: Monostable and Bistable

The SPIN linear actuator technology is available in two different architectures designed to meet different application needs.

• Monostable Version
  • One stable position with zero current
  • Longer strokes
  • More constant force throughout the stroke
• Bistable Version
  • Two stable positions without power supply
  • Shorter strokes
  • Higher force with an increasing force profile

The bistable configuration is particularly advantageous in applications where complete elimination of holding current is desired.

Applications and Scalability

The SPIN linear actuator is designed to adapt to a wide range of industrial and automotive applications, including those with strict constraints regarding:

• Current consumption
• Available space
• Ease of integration

Specifically, it can be used in opening and closing systems commonly found in:

• Industrial applications
• Home appliances
• Automotive systems

Conclusions

The SPIN® Linear Actuator represents a significant evolution compared to traditional electromagnetic technologies.

Its main strengths include:

• Superior performance per unit volume
• Elimination of holding current
• Greater energy efficiency
• Absence of limiting elastic components subject to wear
• High scalability and customization

This technology positions itself as the ideal solution for applications requiring high performance, reduced energy consumption, and easy integration, providing a concrete competitive advantage over traditional actuators. Discover technical data.

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